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Land use impact on soil erosion at different scales in the Brazilian semi-arid Rev. Ciênc. Agron.
Santos,Julio Cesar Neves dos; Andrade,Eunice Maia de; Medeiros,Pedro Henrique Augusto; Guerreiro,Maria João Simas; Palácio,Helba Araújo de Queiroz.
ABSTRACT Erosion and sediment transport processes are strongly dependent on the spatial scale and land use. The objective of this study is to analyse the effects of slash and burn of vegetation followed by grass cultivation for grazing, on the hydrological and sedimentological behaviour at different spatial scales in a semiarid region in Brazil. Rainfall, runoff and soil loss were measured during three years (total of 116 rainfall-runoff events) at three spatial scales: 1 m2 and 20 m2 plots and 2.8 ha watershed. During the first year (2009) the native dry tropical forest/Caatinga vegetation was maintained, whereas on the following years (2010 and 2011) the original vegetation was cleared using slash and burn techniques to grow pasture (Andropogon gayanus...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hydrological and sedimentological behaviour; Soil loss; Scale effect.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000200251
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